Psychology A-Level
Classification and Diagnosis
What Classification and Diagnosis means in Psychology A-Level, as defined for Pearson Edexcel.
Definition of Classification and Diagnosis
The systematic categorization of mental disorders using standardized manuals (DSM and ICD). Analysis focuses on the reliability of diagnosis (consistency between clinicians) and validity (accuracy of the diagnosis in reflecting the underlying condition).
Topics that use Classification and Diagnosis
- Topic 5: Clinical psychology (Pearson Edexcel A-Level)
Related terms
Using Classification and Diagnosis in the exam
Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.
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